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    Site-to-site VPN, can only connect one direction to appliance

    Scheduled Pinned Locked Moved OpenVPN
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    • RicoR
      Rico LAYER 8 Rebel Alliance
      last edited by Rico

      192.168.96.0/19 overlaps your tunnel network 192.168.121.0/24
      Why do you use /19 as Remote Networks and not your 192.168.33.0/24 and 192.168.97.0/24 to be more specific?
      BTW, you can upload pictures directly into the forum.

      -Rico

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      • L
        LamboJ @Rico
        last edited by

        @rico said in Site-to-site VPN, can only connect one direction to appliance:

        192.168.96.0/19 overlaps your tunnel network 192.168.121.0/24
        Why do you use /19 as Remote Networks and not your 192.168.33.0/24 and 192.168.97.0/24 to be more specific?
        BTW, you can upload pictures directly into the forum.

        -Rico

        Shouldn't the tunnel be part of the of the network to be routed? i.e. part of site B, given site B is acting as the server?

        I've used /19 so I can add more VLANs to each site without having to reconfigure anything.

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        • RicoR
          Rico LAYER 8 Rebel Alliance
          last edited by

          No, the tunnel network is used internally by OpenVPN between tunnel endpoints.
          Pick a network that it is not in use locally or at any remote site.

          -Rico

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          • PippinP
            Pippin
            last edited by

            Informational:
            https://community.openvpn.net/openvpn/wiki/AvoidRoutingConflicts

            I gloomily came to the ironic conclusion that if you take a highly intelligent person and give them the best possible, elite education, then you will most likely wind up with an academic who is completely impervious to reality.
            Halton Arp

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            • L
              LamboJ @Rico
              last edited by

              @rico said in Site-to-site VPN, can only connect one direction to appliance:

              No, the tunnel network is used internally by OpenVPN between tunnel endpoints.
              Pick a network that it is not in use locally or at any remote site.

              -Rico

              I've changed the tunnel network to: 192.168.224.0/30 (on both appliances), but still seeing the same issue.

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              • RicoR
                Rico LAYER 8 Rebel Alliance
                last edited by

                Did you try to be more specific with the Remote networks?
                For the box with pfSense LAN IP 192.168.33.1/24 set the OpenVPN Remote network to 192.168.97.0/24
                For the box with pfSense LAN IP 192.168.97.1/24 set the OpenVPN Remote network to 192.168.33.0/24

                -Rico

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                • L
                  LamboJ @Rico
                  last edited by

                  @rico said in Site-to-site VPN, can only connect one direction to appliance:

                  Did you try to be more specific with the Remote networks?
                  For the box with pfSense LAN IP 192.168.33.1/24 set the OpenVPN Remote network to 192.168.97.0/24
                  For the box with pfSense LAN IP 192.168.97.1/24 set the OpenVPN Remote network to 192.168.33.0/24

                  -Rico

                  Just tried that as well, unfortunately no luck.

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                  • RicoR
                    Rico LAYER 8 Rebel Alliance
                    last edited by Rico

                    Could there be something else overlapping, like an IPsec tunnel?
                    What exactly is not working? You can't ping 192.168.97.1 from that 192.168.33.1 pfSense Box?

                    -Rico

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                    • L
                      LamboJ @Rico
                      last edited by LamboJ

                      @rico said in Site-to-site VPN, can only connect one direction to appliance:

                      Could there be something else overlapping, like an IPsec tunnel?
                      What exactly is not working? You can't ping 192.168.97.1 from that 192.168.33.1 pfSense Box?

                      -Rico

                      Correct, the issue is that I can't ping 192.168.97.1 from anywhere in Site A. So I can' t ping 192.168.97.1 from 192.168.33.1 or from any other hosts like 192.168.33.2, etc.

                      Site A doesn't have any ipsec tunnels. Site B (192.168.97.0/24) has an IPSec tunnel to Site C which is an Azure gateway (not pfsense). Here's the configuration:
                      5abc9d76-a0ab-4445-a0ff-d683c35cba33-image.png

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                      • RicoR
                        Rico LAYER 8 Rebel Alliance
                        last edited by

                        Your IPSec Local Network overlaps 192.168.97.0/24 and 192.168.33.0/24
                        I'm not really into IPsec, but pretty sure it could grab that OpenVPN traffic.
                        TBH, I lose track a bit about your whole setup, it is not easy to follow which site is which Configuration, Rules or even local/remote networks.
                        It could help to sketch up your network layout.

                        -Rico

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                        • L
                          LamboJ @Rico
                          last edited by

                          @rico said in Site-to-site VPN, can only connect one direction to appliance:

                          Your IPSec Local Network overlaps 192.168.97.0/24 and 192.168.33.0/24
                          I'm not really into IPsec, but pretty sure it could grab that OpenVPN traffic.
                          TBH, I lose track a bit about your whole setup, it is not easy to follow which site is which Configuration, Rules or even local/remote networks.
                          It could help to sketch up your network layout.

                          -Rico

                          Thanks for all your help, but it actually looks like everything was correct in terms of settings, I just needed to reboot the appliance and it worked. I didn't realize rebooting would help here

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